Destructor-furnace.



P. D. CANHAM.

DESTRUTOR PURNACE.

APPLICATION FILED 0015, 191s,

1,066,185. Patented Ju1y,1913.

g pere.lf D Camzam ma. B, MGM ,mnmfr UNITED STATES PflTENT OFFICE.

PERCY D. CANHAM, 0E NEW YORK, N. Y., ASSIGNOR T0 POV/TER SBECIALTY COMPANY,

0F NEW YORK, N. Y., A CORPOEATON OF NEW YORK.

DESTRUCTOR-FURNACE.

noemen Specification of Letters Patent.

Patented J ulyl 1913.

Application led October 5, 1910. Serial No. 585,387.

To all 'whomz may concern.

Be it known that I., PERCY D. CANHAM, a subject. of the Kingof Great Britain, residing at New York, county'of Richmond,

and State o-f-New York, have inventedcer-l sitter-'the combustible material has b ecncon-V fumed, be utilize-d. The usual way of utili. ing Suchheat is to employ it for heating the air which supports the combustion, and `it ie to this method of utilization that my present invention generallyrelatesits chief-oir ject. being to provide improved means for handling thc clinlcer in a convenient and eX- peditious manner, and for disposingof it in Such VWay as to cause` its heat to be rapidly and efficiently impartedto the air furnished to the burning mass on the combustion grate or in the grate chamber.

To this and other ends the invention consists in the novel features of construction and combinations of elements hereinafter described, and more particularly set forth in the claims.

A convenient and effective embodiment of the invention is illustrated in the accompanying drawings, in Which- Figure 1 is a sectional planvieiv, on linek 1"-1 of Fig.- 2, of a destructor furnace in Whichfmy invention is employed. Fig. 2 is a sectional side view.

The furnace illustrated comprisesrca series ofv grate chambers, one beingr shown at 12,

arranged side by side and eachcommunicatin@r with the adjoining cl'iambers through suitable openings, one of which is Shown at 13, so that the products of combustion can flow from one chamber to the next, in suc` cession, finally reaching the stack or outlet flue, not shown.. The bottom of eachl grate chamber is formed by a grate on which the bnstion grate beingpreferably of the type described in the application of Foster, Serial No'. 539,103, tlledJanuary 20, 1910, and J. T. Fetherston, Serial No. 541,504, filed February 2, `1910. Ii1-'gratesofy this type, as illustrated, the grate, ,forex-ample that shown at14, is slidblyfmounted on anti-friction rollers 15, journaled in` rails, I

as 1G, at the sides'of thc'clinkebpit 17 near the top thereof. Connected tothe movable combustion grate is the Vplunger;.18 'of a Suitable liuidpressure ram :19, by which the grate muy be actuated. a In*the'presentform the ram is in front of thefurna'cefand the lower front wall 20 of the 'grutechamber is substantially vertical, ,so ,that as the grate is retracted or drawn out vfroid-.under the grate-chamber such vertical wall will scrape the clinker oil and intot-he clinker-.pit below.y

The mouth 21 .o f the gratechumberis provided with a vertically movable door 22, prefernbly connected Ywith suitable counter- Weiglits, not Shown, and-.inV frontof the chamber mouth is a charging :apparatus of the type described` `in the application of J. T. Fetherst-on, Serial No.5 541,503, :filed February 2, 1910, comprising e, panorreceptacle 23, movable `into vand-outbf the `furnace, on suitable si.ip.portingrails"and rollers, by means of a. fluid pressure yram the plunger of which is Shown-at 24.

To chargetheV furnaceY thelpan is filled with the material to be burned. -la'vnd'is advanced into the grate-chamber. vThe pan is then retracted, but the -Wall 25l thereof is held stationery during part, at least, of such movement, thereby oausfingrrthe material in lthe, pan to be dislodgedv over the opposite 'tom being open, as shown in Fig. .2. This box-grete receives` the clinker as it is dislodged from the moving -combustion grate 14. Below the clinker-boxvor box-grate is an air-Chamber 28` connected at its rear, by means of la passage 29, with un air duct 30 through ,which a current of air is caused to flow by any suitable means, not shown. ln the passage 29 is a damper or valve 31, by

55 burningr of the refuse takes place, each comwhich the flow of air to the air-chambercan struction and convenient in operation, but.A

l `ig. l, and in dotted linesl in Fig. i.

lie regulated, -The rlinlter-box being corered with lumps or pieces of eliulfcr of rarious. sizes. it \\ill be seen that the air, flowing up through the grate openings aud the clinlter, will be highly heated before reaching the combustion grate; the result being that the combustion on the latter grate is more rapid and thor( gh than would be the case if the air were supplied cold or only imiderately heated. l

The cliultenbox 1T is movable bodily ont of the. clinlter-pit t7 through the rear openA ing 32, and when in itsl outermost position its open rear portion overhangs the car 33 into which the cooled elinlter is scraped and by which it is carried to the dump. Such outermost position of the. box is shown iu To malte the clinlter-box or cooling reeel'itacle conveniently and easily1 movable it is mounted on anti-friction rollas 3l journaled in rails 235 on the sides of the eliulterpit at the bottom thereof.A and for the purpose ot actuating the receptacle it is couneeted to the plunger 3G of a tluid-pre sure ram 37, arranged below the ram lf) which aetuates the combustion grate 14. 'lhe mouth 32 of the Clinker-pit, is provided with a suitable door or closure 3S. movable vertically and connected with suitable eounten weights, one of which is shown at 39. The air-chaniber 2S, below the Coolingr receptacle and elinleer-pit, may be provided with a clean-out; opening 40. normally corered by a removable closure 41.-

The apparatus described wil'l be seen to be an eflieient means for handling and disposing of the elinker for the purpose before mentioned, the elinker being deposited in the Cooling receptacle expeditiously and with practically no loss of heat. After the' heat of the elinker has been imparted to the air flowing through it, the receptacle is carried bodily out of the elinker-pit vand the clinker scraped ottl into the car, as already described.

The embodiment illustrated is, asv just. Stated, etlieient., and is also simple in ronit is to be understood that the invention may be embodied in other forms without deend. rails mounted below' the elinlger-pit. a.

elinker-eooling receptacle morabl)y mounted on said rails and in linearith .said opening. and comprising a grate-bottom and upwardly extending walls. one end of said receptacle being open. means for discharging hot clinker from the gratechamber into the i' nililg" A rlinl-:er-i` terna-d b5. a irontiunation of the latter. means ler di-iwi'i 'current of air r l-luwiug to vcharge not rlinlcer from the grate chamber` into the elinlter-pit, a mor-able grate between the Cliuker-pit and the air chamber, means for a 1-tuating said grate to remore clinlter from the elinker-pit. and means for .supplying a current of air to the air chamber. l

3. ln a destructor furnace, in combination. a graterhamber in which the combustion takes place, a elinlter-pit below saidgrateehamber and having an opening at one end, rails mounted below the clinlter-pit, a clinker-eooling reeel'itacle movably mounted on said rails and in line with the opening at. the end of the clinlter-pit, said cooling receptaele being substantially eoexteusive with the elinlter pit. means for discharging hot elinlter from the grate chamber into said cooling reeeptaele, an aii chamber below. the clinker-pitl formed by a continuation of the latter.y and means for delivering'- a eurrent of air to the air chamber. whereby ail' flowing up through the hot elinlter in the cooling receptacle will be heated before en! tering the Igrate-Chamber. and aetuatiug means for movin;r said clinlter cooling receptacle bodily through .said opening to permit, convenient removal of cooled cliulier therefrom. Y

4. ln a destructor furnace. in combination` a grate chamber in which the Combustion takes place. a elinlter-pil' below Said grate `chamber and haring au openingr at. one end, a statienaiw' air chamber below said clinkerpit` rails` mounted below the elinlicr-pit and extending through and beyond said opening, 'a clinlter coolingr recerd'acle movably mount,- ed ou said rails through the opeuingsaid receptacle being substantially rcextensive with the contour of tbe clin-hermit and defining the lower end of tlusame and the upper end of the .stationary airchamber, means t'or discharging hot eliulter from the grate chamber into the rooting receptacle, and means for delivering :i current of air to the air chamber. Y

53. ln a destructor furnace, iu combination. a glatt-chamber in which the combustion rlnuula-r below the'l takes place, a cli'nker-pit below said grate clinkenpit, rails mounted below the elinkerpit, a clinker cooling receptacle movahly extensive with the contour of the clinkerpit and defining the lower end of the Same and the upper end of the stationary air chamber, reciprocating means for discharging hot' clinker from the grate-clia1nber into the cooling receptacle. and means for deliv ering a current of air to the air chamber.

A destructor furnace comprising walls detining consecutively, grate, clinker and air chambers in substantially Vertical alinement with each other, said Walls provided with a plurality of lateral openings, a furnace grate the horizontal dimensions,v of which is sub` tantially coexteusive with the horizontal dimensions of the various chambers and located between the grate chamber and clinlier chamber, a receiving chamber for said grate l i l l l l l l l extending outwardly from one of the aforesaid lateral openings and in alinenient with A@aid grate, means for withdrawing the grate into the receiving chamber to .discharge clinker from thc grate into the clinker chammounted on #aid rails boing substantially coher. a clinker grato substantially coextensive with the horizontal dimensions of Said cham, bers and located between the clinker chamber and air chamber and in alinement with one of Said lateral openings, actuating means for moving said grate bodily out from under the grate chamber and through said opening in the Side of said clinkcr chamber to permit crmvenient removal of cooled rlinker 'from said grate, and means for supplying a current of air to the air chamber.

ln testimoniv whereof l aflix my signature in the presence of two subscribing witnesses.

PERCY D. CANHAM. "'itneesenz M. LAWSON DYER, BERT. R. SANDMAN. 

